Petersik J T, Pufahl R, Krasnoff E
Vision Res. 1983;23(12):1663-70. doi: 10.1016/0042-6989(83)90181-5.
Previous studies of apparent movement have concluded that the short-range process does not operate when stimulus displacements exceed 15-20' arc. In the present experiments, we studied a bistable apparent-movement display, one of whose perceptual organizations is mediated by short-range process. In both experiments it was found that the perceptual organization mediated by the short-range process could be made dominant at stimulus displacements well in excess of the proposed spatial limit, provided the stimulus elements were made larger. It is concluded that the spatial limit of the short-range process is a relative, not absolute, one. Current knowledge regarding the short-range process is reviewed, and an hypothesis regarding the functional utility of the short-range process in compensating for the effects of small eye tremors is advanced.
先前关于似动现象的研究得出结论，当刺激位移超过15 - 20分视角时，短程过程就不会起作用。在本实验中，我们研究了一种双稳态似动显示，其一种知觉组织是由短程过程介导的。在两个实验中都发现，只要刺激元素变大，由短程过程介导的知觉组织在远远超过所提出的空间限制的刺激位移下也能占主导地位。得出的结论是，短程过程的空间限制是相对的，而非绝对的。本文回顾了关于短程过程的现有知识，并提出了一个关于短程过程在补偿小幅度眼球震颤影响方面的功能效用的假说。
